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US Patent: 1,485,486
Power Hammer
Patentee: James I. Depew (exact or similar names) - Loup City, Sherman County, NE USPTO Classifications: 72/431, 72/481.6 Tool Categories: metalworking machines : forging machines : drop hammers Assignees: None Manufacturer: J. I. Depew Disc Sharpener Co. - Loup City, Sherman County, NE Witnesses: D. A. Beach Joseph F. Haremza	Patent Dates: Applied: Oct. 05, 1922 Granted: Mar. 04, 1924 Patent Pictures: [ 1 | 2 ] USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for J. I. Depew Disc Sharpener Co.

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